# a"纪宁和余微"
# # b="是道侣"
# # d==a+b
# print(d)
# c="".join((a,b))
# print(c)
# print(a[0:3])
# print(a[:])
# s="大家好，我的名字是{}，今年{}岁，性别{}"
# z=s.format("纪宁","18","男")
# print(z)
# s="pythonstudyokGOOD"
# # z=s.find("on",0,-1)
# # print(z)
# # # z=s.lower()
# #
# # z=s.strip(' ')
# z=len(s)
# print(z)
s="我%s你"%("爱")
print(s)
